It doesn't work. What do I do?

If you have inserted the UnlockMySIM sticker in your iPhone and cannot connect to the network of your choice, please perform the following checks:

1) Make sure your iPhone is free of additional security measures such as the iCloud Activation Lock, Find My Phone and hasn't been blacklisted by the original operator due to loss, theft or non-payment. These restrictions can only be removed by the owner of the iPhone or Apple.